Sealing device for cans, &amp;c.



S. W. MILLIGAN & J. F. JAOOBSEN.

SEALING DEVICE FOR CANS, 6m. APPLICATION FILED JAN. 19, 1912.

1,082,892, Patented Dec. 30, 1913.

UNITED STATES PATENT OFFICE.

STEPHEN W. MILLIGAN, 0F ELIZABETH, AND JACOB F. JACOBSEN, OF NEWARK, NEW

JERSEY, ASSIGNORS TO THE MANUFACTURERS CAN COMPANY, OF NEWARK," NEWJERSEY, A CORPORATION OF NEW JERSEY.

SEALING DEVICE FOR CANS, 8w.

Specification of Letters Patent.

Patented Dec. 30, 1913.

Application filed January 19, 191-2. Serial No. 672,199.

To all whom it may concern.

Be it known that we, STEPHEN W. Minni- GAN, residing in Elizabeth,county of Union, State of New Jersey, and JACOB F. JAcoB- sins, residingin Newark, county of Essex,

State of-New Jersey, citizens of the United States, have inventedcertain new and usefuLImprovements in Sealing Devices for Cans, &c., ofwhich the following is a specification.

The primary purpose of this invention is to provide a convenienteconomical sealing device for cans provided with necks or spouts such,for instance, as those ordinarily used for varnish.

The different members of the seal are made of sheet metal and the spoutof the can and members of the sealing device-are so related or adaptedto each other that one memberwill serve as a conveniently removablestopper "both before the can is filled and after it is opened or theseal broken by the user.

In the accompanying drawing, illustrating one embodiment of theinvention, F igure 1 is 'a side elevation of the sealing member; Fig. 2,a similar view of the plug member; Fig. 3, a sectional view showing theplu member used as a mere plug or stopper int c spout of the can; Fig.4, a sectional view showing the sealing member of the seal-secured inplace in the can spout; Fig. 5, a similar view illustrating what isshown in Fig. 4 with the addition that the stopper member of the seal isseated in the sealing member; and Fig. 6, a detail sectional viewshowing the use of a gasket.

1 indicates the top of a can of any construction and 2 the spoutthereof. The

spout is of sheet metal, such as apropen grade of tin and, adjacent itstop, has impressed, stamped or embossed in it a screw thread 3. Itsupper edge is formed by an outwardly turned flange 4. This spout, exceptfor the screw. thread 3, is in all respects similar to can spouts asgenerally made and isadapted to have spun over its flanged edge, theflange of a sealing disk in the ordinary manner now practised. The sealing member 5 is cup-shaped and is formed with a flange 6 ada ted to bespun over the flanged edge 4 o the spout and below the flanged edge 6there is impressed, stamped or embossed in the circumferential wall ofthe sealing member a thread 5 adapted to enter and engage the thread 3of the spout.

When the can has been filled, the sealing member 5 is screwed down intothe spout and then its flange 6 is, by the use of an ordinary tool, bentover and crimped around the flange 4 of the spent. The user mayconveniently open the seal by cutting out the bottom of the sealingmember 5.

The second member 7 of the seal, which may be called a plug or stopper,is of sheet metal and is cup-shaped. Its head or upper portlon 8 isformed with peripheral nurlings 9 and lts lower tapered portion 10 hasimpressed, embossed or stamped in its circumferentialwall a screwthread" 11. The taper and thread are suchthat the plug will enter andengage the thread 3 of the spout and will also enter and engage thethread 5? of the sealing member 5. The under face of the head portion ofthe plug is formed as an annular conc'ave 12 upon the top of which,within the head, may be'seated a disk 13 held in place by spinning overthe upper edge 14 of the head 8 of the plug.

The disk 13 may be embossed or otherwise provided with names, trademarks, etc., in any appropriate way.

Customers of can manufacturers usually desire that when cans are shippedto them they shall be stoppered; and in many instances ordinary corksare employed. This is for the purpose of preventing dust or dirt of anykind entering the cans during transportation or storage. In the presentsealing devioe, the plug '8 screwing into the threaded spout, asillustrated in Fig. 3,

advertising matter,

forms a readily removable closure or stopper inserted by the canmanufacturer before shlpment. After filling, the sealing member 5 isscrewed into the spent and at tached to its flange, as already describedand as shown in F ig l, and then the plug is screwed into the sealingmember. The plug being tapered may act to expand radially thecircumferential wallsof the sealing member 5 to carry them into intimatecontact (if they are not already so related) with 'the circumferentialthreaded wall of the spout. Should the seal of itself not be so appliedas to make a perfect closure, the plug may by radially expanding afforda perfect sealing of the can. In Flg. 6, however, there is shown apacking gasket 15 interposed between the flange edges of the spout andsealing member 5.

When the painter or other user of the contents of a can, sealed asdescribed, de-

' parts are all made of sheet metal of suitable grade and may bemanufactured at very small cost.

In the drawings, for convenience of illustration of course, contiguousfaces of the spout, sealing member and plug have been shownslightly'separated so that the construction may readily be read from thedrawings. In practice, of course, contiguous surfaces will be incontact. I

We claim:

1. A can seal comprising the combination of a tapered can spout havingin it circum ferentially a screw thread adjacent its outer end and anannular laterally projecting flange at its outer end, a tapered sheetmetal cup-shaped sealing member having a thread in its circumferentialwall engaging the thread in the spout and a flange crimped around theflange of the spout.

2. A can sealing device comprising a tapered can spout having in itcircumferentially a screw thread and at its outer end a laterallyprojecting flange, a tapered cupshaped sealing member having impressedin its circumferential wall a screw thread adapted to engage the threadin the can spout, and having a flange crimped around the flange ofthespout and a tapered plug having a circumferential thread adapted toengage either the thread inthe sealing memher or the thread in the canspout.

' 3.' A can seal comprising the combination of a can spout secured inand projecting upwardly from the can top, and a sheet metal cup-shapedsealing. member closed at the bottom, fitting in the spout andpermanently rigidly secured at its upper edge to the edge 'of the spout,the sealing member being adapted to receive a removable closure plug.

In testimony whereof, we have hereunto subscribed our names.

STEPHEN W. MILLIGAN. JACOB F. JACOBSEN.

Witnesses:

FLORENCE E. CoUeLE, MILTON L'. Orr.

